Peters



J. A. JOHNSON.

DRIVING AND SUPPORTING WHEEL OF HARVESTERS. No. 259,398 Patented June13, 1882'.

Mar. Wu

UNrrnn STATES JOHN A. JOHNSON, OF MADISON, WISCONSIN, ASSIGNOR. TOIVALTER A. WOOD MOWING AND REAPING MACHINE COMPANY, OF HOOSIOK FALLS, N.Y.

DRIVING AND SUPPORTING WHEEL OF HARVESTERS.

SPECIFICATION forming part of Letters Patent No. 259,398, dated June 13,1882.

To all whom it may concern:

Be it known that I, JOHN A. JoHNsoN, of Madison, in the county of Daneand State of Visconsin, have invented certain new and usefulImprovements in Driving and Support ing Wheels of Harvesters; and Ihereby declare that the following is a full, clear, and exactdescription of the same, reference being had to the accompanyingdrawings, making a part of this specification, in which- Figure l is aside elevation of my improved wheel. Fig. 2 is a diametric section ofthe same on line [E .r in Fig. 1. Fig. 3 is a similar view of thecentral portion of the wheel. Fig. at is a perspective view of asprocket-wheel which forms a portion of the wheel-hub; and Fig. 5 is asimilar view of a sleeve, the periphcry of which forms seats for one ofthe series of spokes.

This invention relates to an improvement in the driving and supportingwheels of harvesting-machines; and its object is to simplify theconstruction and increase the compactness and strength of such wheels.

It consists essentiallyin forming and applyiugas integral portions ofaharvester-support ing wheel those gear-wheels and transmitters of motionwhich have generally hitherto been simply attached to said wheels.

The construction and arrangement of the several parts composing thewheel according to my invention will be hereinafter particularlydescribed with reference to the accompanying drawings.

The letter A designates a tubular central portion of the wheel-hub,formingthe skein or thimble which fits upon the axle Upon one end ofthis central tube is keyed a gear-wheel, O, the function of which is totransmit motion from the supporting-wheel, through suitable intermediatemechanism, to the cutters of a harvester or mower. In one side of thehub of this wheel are formed sockets d, which receive the inner ends ofone of the series E of staggered spokes E E with which the wheel isprovided. The rim of the wheel 0 has cast upon its side abutmentsf,which bear against the spokes and prevent undue torsional strain of saidwheel upon the central portion, A, and the inner ends of the spokes.Upon the end of .spokes E.

the tube A opposite to that upon which is located the gear-wheel Othereis keyed the sleeve G, having a flange, g. The outer periphery ofthis sleeve is formed with flat faces 2', which serve as seats for theinner end of the series of Upon the same end of thetube A, andprojecting partially over the sleeve G, is keyed a wheel, K, providedwith sprockets l, and having formed in one of its sides sockets in,which embrace the inner ends of the series of spokes E. The function ofthe sprocketwheel K is to transmit motion through a suitable chain tothe reel or any other device, as desired. The wheels 0 andK areconnected by bolts 1a,.whieh pass through the inner ends of the spokes Eand between the spokes E; and said wheels, as will be observed, inaddition to their function as transmitters of motion, form portions ofthe hub of the supportingwheel. The function of the sleeve Gr is to fa-7o cilitate the tightening of the spokes and bracing the several partswhen they are assembled,

as will be presently explained.

The letter O designates the rim or telly of the wheel, which is formedof wood, and is provided with a metallic tire, o, retained in positionby transverse ribs 0, riveted or bolted to the telly. On the innersurface of said rim or folly O are arranged a series of cup-likesockets, p, which receive the outer ends of the spokes, and are retainedin position by tenons inserted in the folly. These sockets are arrangedin a staggered row, so that alternate spokes extend to near oppositeedges of the telly, and so that the wheel may have quite a V broad treadand at the same time have a wellbraced rim.

The tube A is provided near its middle with an oil-passage, q, for thepurpose of lubrieatin g.

The axle B may ofcourse have fixed upon it the usual lever-wheel, t, andthe gears 10 for engaging with racks on the machine to raise or lowerthe latter.

In assembling the elements of my wheel I first key the gear-wheel G inposition upon the 5 tube A and insert the inner ends of the series ofspokes E in the sockets of said wheeland in their proper cup-likesockets of the folly. I then place the sleeve Gr upon its end of tube A,seat the inner ends of the series of spokes 10o E upon the flat faces *5of said sleeve, and insert theouterends of said spokes intlieirfellysockets. The sprocket-wheel K is then passed over the end oftube A and its sockets m caused to embrace the inner ends of thespokesE. These parts being thus in position, the bolts n are passed throughholes in the wheel 0, spokes E, and wheel K, and when the nuts '1 havebeen placed upon the projecting screwthreaded ends of the bolts 1gradually screw up these nuts until I find the parts all snugly adjustedin place, the key 8 having been inserted in grooves provided for it,said key serving to hold both sleeve G and wheel K. The sleeve Gr movessinoothl y upon the tube A, and thus permits the spokes to be drawntogether much more easily and uniformly than if the inner ends of theseries E were required to slide directly upon the tube A. Should thespokes become loose by shrinkage, they may be readily tightened byscrewing up the nuts 0', the drawing together of their inner endsproducing a similar effect on the two series of spokes.

Having now fully described my invention,I claim- 1. The combination ofthe wheel, wooden rim, staggered metallic cup-like spoke-sockets securedthereto, staggered spokes, gear-wheel C, and projectionsf upon its rimto bear against the spokes, with central tube, A, and sprocketwheel K,substantially as and for the purpose described.

2. The combination of the wheel, wooden rim, staggered metallic cup-likespoke-sockets secured thereto, staggered spokes, gear-wheel (J, andprojectionsfupon its rim to bear against the spokes, with central tube,A, its polygonal sleeve G, and sprocket-wheel K, substantially as andfor the purposedescribed.

JOHN A. JOHNSON.

Witnesses:

T. E. THoMPsoN, A. E. PROUDFIT.

